In my role as Head of Musicr, I am a big believer in teaching and empowering children to be composers. All children can naturally compose music, just as they do draw a picture. All that needs to happen is they need to be given some very simple starting blocks, and off they go. These starting blocks never need to be traditional western notation.
Here is an example of a piece written by a group of five-year-olds. They were given 45 minutes to write and perform this piece. They have been composing in my classes for about four years now, so they are very used to that task expectation. You can hear they have written a four-part piece of music, including an A and a B section. It totally rocks